Archived posting to the Leica Users Group, 1998/12/18
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]CCD stands for Charge Coupled Device, CPD stands for Charged Particle Device. MOS type chips are the best sensing chips out there. Whereas a reject ratio of 10% DOA (yep, dead on arrival) pixels is within tolerance for a CCD, less than 1% is acceptable for the MOS chips. MOS chips are manufactured in a different way, with much more control than the CCD or CPD types. The camera manufacturers who sport 'digital' cameras now are adapting someone elses sensing array to their body. Usually they are working hand in hand, literally, with the chip maker. Leaf, big drum scan manufacturer, has some leading edge technology on sensing arrays, but still uses CCD/CPD chips (oh yeah, did I say they are cheaper?) Of the studios I know using digital acquisition most are in the business of doing books (brochures, etc.) and need fast, simple, direct access to images as they are being made. It ain't 'art', it's volume. For a niche market, digital acquistion surely hits the mark with the guys doing product shots and the like.